JPH0319322Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to water heaters, especially those that use an electromagnetic cooker as a heat source. Something is publicly known.
However, in recent years, with the advent of electromagnetic cookers, it has become possible to boil water by placing a kettle or the like on the electromagnetic cooker. For this reason, it is desired to utilize an electromagnetic cooker.

[Problems to be solved by the invention] Nowadays, when electric pots are widely used in ordinary households, there is a problem in that placing a kettle on the electromagnetic cooker to boil water lacks elegance. Additionally, there is a problem in keeping the water warm after boiling it.

Therefore, there is a demand for a water heater that uses an electromagnetic cooker to generate heat, but at present there is no water heater of this type.

[Means for solving problems]

The purpose of the present invention is to provide a water heater that solves the above-mentioned problems, and as a means thereof, the water heater that is used by being placed on an electromagnetic cooker equipped with an induction heating device includes: an outer case; A liquid container 1 is installed inside the container 2, and a heater 19 is provided in the liquid container 1; for generating an electromotive current in a flat spiral shape when receiving a magnetic force from the induction heating device of the electromagnetic cooker. The coil 18 is connected to the heater 19, the electromotive current generating coil 18 is placed on the bottom plate part 4 of the outer case 2, the middle bottom plate 17 is placed on the coil 18, and the coil 18
is sandwiched between the bottom plate part 4 and the middle bottom plate 17.

〔Example〕

An embodiment of the present invention will be described in detail below based on the drawings.

(Overall configuration of water heater) In Fig. 1, a liquid container 1 is made of stainless steel, for example, and an outer case 2 made of synthetic resin.
It is mounted and supported inside.

The outer case 2 consists of a cylindrical main body 3 and a bottom plate 4, and the bottom plate 4 is fitted 4a into the main body 3. The main body part 3 has a handle 5 provided on the back part.
and an upper opening cylindrical portion 6 following the upper opening of the liquid container 1.
and a draining part 7 provided on the front part. The upper opening cylindrical part 6 is cut out in the front part so as to communicate with the draining part 7. As shown in the second figure, a transparent liquid volume display window plate 8 extending in the vertical direction is provided on the side surface of the outer case 2.

The upper opening cylinder part 6 of the outer case 2 is the liquid container 1.
A plug body 9 is screwed 10 into the upper opening cylindrical part 6 through a gasket. Plug body 9
When screwed in, the packing 11 of the stopper 9 comes into close contact with the lower end periphery of the upper opening cylindrical portion 6 and the inner periphery of the draining portion 7, thereby closing the liquid container 1 in a watertight manner. On the other hand, when the plug body 9 is screwed back, the gasket 11
is retracted to communicate the liquid container 1 and the draining section 7.

The plug body 9 is a bowl-shaped screw member 12 made of synthetic resin.
and a handle member 13 made of synthetic resin, the handle member 13 is fitted 13a to the periphery of the upper opening of the screw member 12, and is secured with a screw 13b at the center.

A shoulder cover 14 made of synthetic resin is provided on the outer periphery of the stopper 9, and the shoulder cover 14 has a handle cover 15a extending over the upper part of the handle 5 on the back side thereof. The back of the handle 5 is covered with a separate handle cover 15b, and the extended end of the handle 15b is fixed to the outer case 3 with screws 16.

Note that a bottom mounting body 20 is provided at the center of the bottom plate portion 4.
is integrally formed, and the inner sole plate 17 disposed close to the bottom plate part 4 is fitted 17a, and the inner sole plate 17 is screwed 17b to the boss 4b of the bottom plate part 4 at the outer periphery. A flat spiral electromotive current generating coil 18 is sandwiched between the two.
On the other hand, a band heater 19 is wound around the outer periphery of the liquid container 1, thereby configuring heating means for the liquid container 1.

(Support Structure of Liquid Container) As shown in FIGS. 2 and 3, a support material 21 is fixed to the outside of the bottom of the liquid container 1, and a bolt 22 inserted from the bottom mounting body 20 is inserted into the support material 21. It is screwed onto a female screw 23 provided therein. The support material 2
1 is made by bending a steel plate material and forming a female thread 23 on the flat plate part, and a wing-shaped flange part 24 extending from both ends is fixed to the bottom of the liquid container 1 by spot welding or the like. ing. The bottom mounting body 20 forms a boss portion 25, and the head of the bolt 22 is buried in the large diameter portion of the boss portion 25.

As shown in FIG. 3, in the upper mounting part, a plurality of female screw members 27 are fixed to the outer side of the upper part of the liquid container 1 at intervals in the circumferential direction, and the female screw members 27 are fixed to the upper part of the outer case 2. A plurality of bolt support tubes 28 are integrally formed in correspondence with the threaded material 27, and bolts 29 inserted into the support tubes 28 are screwed onto the female threaded material 27. The female screw member 27 is fixed to a horizontal shoulder 30 correspondingly formed on the liquid container 1,
The female threaded material 27 is made by bending a steel plate material into a U-shape, and has a female thread 31 formed on the flat plate part.Flanges 32 extending perpendicularly from both ends of the U-shape are connected to the shoulders of the liquid container 1. It is fixed to the portion 30 by spot welding or the like. On the other hand, the bolt support cylinder 28 is arranged on the outer peripheral side of the open cylinder part 6 of the outer case main body part 3,
With the head of bolt 29 buried, bolt 2
9 is screwed onto the female screw material 27 so that it can be drawn freely,
When the bolt is tightened, the female screw member 27 is brought into contact with and supported by the support cylinder 28.

Therefore, when attaching and supporting the liquid container 1 to the outer case 2 using this device, for example, before assembling the shoulder cover 14, the liquid container 1 is attached and supported within the outer case 2.
are aligned so that the upper female thread 27 corresponds to the bolt support cylinder 28, and in this state, the bolt 29 inserted into the support cylinder 28 is temporarily screwed into the female thread 27, and the bottom mounting body 20 is The bolt 22 inserted from the boss portion 25 is temporarily screwed into the support member 21 at the bottom of the container, and then the upper and lower bolts 29, 22 are screwed together.
Tighten.

(Mounting part of electromotive current generation coil) Electromotive current generation coil 18 according to the embodiment of the present invention
As shown in FIGS. 1 and 2, when the coil 18 is held between the bottom plate part 4 and the middle bottom plate 17, the fitting part 20a of the bottom part mounting body 20 is attached to the fitting claw piece 20a.
The center opening edge of the middle sole plate 17 is fitted 17a to the inner sole plate 17. The middle sole plate 17 has a plurality of circumferential stripes 17c that protrude downward, and in a fitted state, the upper portion of the coil 18 is held by the circumferential strips 17c. The claw piece 20a is
In the illustrated example, permanent magnets 26 are formed at four locations in the circumferential direction, and are installed between one of the claw pieces 20a and the boss portion 25. Terminals 60 are fixed to appropriate positions on the support member 21 with screws 61. This terminal 60 is
As shown in the fourth figure, a terminal plate 64 is fixed to a terminal block 62 made of an insulator such as an insulator through screws 63. In the illustrated example, three terminal boards 64 are arranged at intervals in the longitudinal direction of the terminal block 62.
Although not shown, both ends of the electromotive current generating coil 18 are connected to the heater 19 through terminal plates 64, respectively.
Although not shown, a temperature regulator such as a thermostat is interposed between the terminal plate 64 and the heater 19.

(Falling Stop Valve with Stopper) As shown in Figure 1, the stopper 9 is connected to the liquid container 1.
A passage 33 is formed to communicate the inside of the valve with outside air, and a valve chamber 35 housing a valve body 34 is provided in the middle of the passage. This valve chamber 35 is formed by a cylindrical member 36 as shown in FIG.
6b and is integrally molded from synthetic resin as a cylinder of different diameters. A flange 37 is provided around the outer periphery of the large and small diameter connecting portion, and a plurality of ribs 38 are provided at intervals in the circumferential direction on the inner periphery of the large diameter cylindrical portion 36a. The rib 38 includes a fin portion 38a that is inclined at an acute angle from the opening edge of the large diameter cylindrical portion 36a, and a wing portion 38b that is bent from the fin portion 38a and inclined in the centripetal direction. As shown in FIG. 1, this cylindrical member 36 has an upper large diameter cylindrical portion 36a inserted into the downward cylindrical portion 39 of the handle member 13, and a lower small diameter cylindrical portion 36b inserted into the upward cylindrical portion 40 of the screw member 12. inserted and supported. The downward cylindrical portion 39 has a partition wall 41 at the top,
A communication port 42 is provided in the partition wall 41. The upward cylindrical portion 40 has a small hole 43 facing the opening of the liquid container 1.
A connecting portion between the cylindrical portion 40 and the cylindrical member 36 is defined as a communication port 44 . As shown in Figure 5, the valve body 3
4 is formed into a block of stainless steel or other heavy material, and the wing portion 38b of the rib 38
The main body 34b includes a tapered portion 34a along the tapered portion, and a body portion 34b extending upward to the same diameter following the tapered portion, and has a flat shielding surface 34c on the top surface. This valve body 34
is inserted into the valve chamber 35, and the tapered portion 34a is normally supported by the wing portions 38b of the ribs under its own weight, forming a gap between the shielding surface 34c and the partition wall 41. Therefore, in this state, the passage 33 is
From the opening of the liquid container 1, a small hole 43, a communication port 44,
The gap between the ribs 38 is open through the communication port 42, and the inside of the liquid container 1 is communicated with the outside air, so that the pressure inside the liquid container 1 during boiling water can be appropriately released to the outside. However, the valve body 34 is freely movable up and down within the valve chamber 35, and when the water heater falls over, the valve body 34 is moved up and down by its own weight and the liquid pressure flowing into the passage 33 from the liquid container 1.
5, and the communication port 42 is opened by the shielding surface 34c.
occlude.

In the illustrated example, the rib 38 is provided on the cylindrical member 36 side, but it is also possible to make the inner peripheral surface of the cylindrical member 36 smooth and provide a rib on the outer periphery of the valve body 34. In short, any gap may be formed between the outer circumferential surface of the valve body 34 and the inner circumferential surface of the valve chamber 35 relative to each other.

(Liquid Volume Display Device) As shown in FIG. 2, a liquid volume display device is configured to be located inside the liquid volume display window plate 8, and is a liquid volume display that communicates between the bottom and top of the liquid container 1. A tube 45 is provided. This display tube 45 is a known type that displays the amount of liquid according to the amount of liquid that enters the tube, and the amount of liquid in the liquid container 1 can be detected from outside the water heater through the liquid amount display window plate 8. It is configured.

The upper and lower ends of the liquid volume display tube 45 are connected to the liquid container 1 via connecting members 46, respectively. In order to communicate and connect the upper and lower connecting members 46, a cylindrical opening 47 is inserted and fixed into the upper shoulder 30 of the liquid container 1, and the cylindrical opening 47 projects upward from the shoulder 30. In addition, a similar cylinder opening 48 is provided at the bottom of the liquid container 1.
is inserted and fixed, and the cylindrical opening 48 protrudes downward from the bottom. Although the upper and lower connecting members 46 have different shapes and sizes, they have the same basic structure, and as shown in FIG. 6, they are integrally made of an elastic material such as heat-resistant and corrosion-resistant rubber or synthetic rubber. Bosses 5 are provided at both ends of the bottom of the molded dish-shaped body 49 with one side open.
0,51, and a groove 52 is provided around the inner periphery of the dish-shaped upright wall. The open portion of the dish-shaped body 49 is covered by fitting the periphery of a separate plate-shaped cover material 53 made of metal or synthetic resin into the groove 52 . As a result, a communication passage 56 is formed between the bottom of the dish-shaped body 49 and the lid member 53, which communicates the insides 54 and 55 of the bosses 50 and 51.

In order to insert the connecting member 46, the upper end or the lower end of the liquid level display tube 45 is press-fitted into one boss 50, the tube opening 47 or 48 is press-fitted into the other boss 51, and then the groove 52 is inserted. The dish-shaped open portion of the connecting member 46 may be covered with the lid member 53 through the connecting member 46.

[Effect of the embodiment]

To boil water with the water heater of the above embodiment, the water heater is placed on an electromagnetic cooker with water stored in the liquid container 1. An electromagnetic cooker has a built-in coil made of copper wire wound around an iron piece, and the coil generates magnetic force using an electric current. If this occurs, an eddy current is generated in the bottom of the pot, and this eddy current creates electrical resistance in the bottom of the pot, generating heat). In the case of this embodiment, this magnetic force causes the electromotive current generation coil 18 to
generates an electromotive current without generating heat, and energizes the heater 19 with this electromotive current, causing the heater 19 to generate heat. Therefore, the liquid container 1 is heated and boils water. After boiling, the heater 19 is energized by a temperature controller such as a thermostat, and the liquid container 1 is heated.
Keeps the liquid inside warm. At this time, the bottom of the water heater is protected by the bottom plate 4 of the outer case 2 made of synthetic resin, and the outer periphery is protected by the main body 3 of the outer case 2 made of synthetic resin. It is safe without causing burns.

Furthermore, the electromagnetic cookers currently available on the market are configured so that if an inappropriate object other than a pot or the like is placed on the cooker, an alarm device that notifies the user of an abnormality is activated and issues an alarm signal such as a buzzer. There is. Of course, in the case of the above embodiment, the above-mentioned alarm signal is emitted because the bottom plate part 4 of the outer case 2 is made of synthetic resin, but if the magnet 26 is provided as described above,
The magnetic field lines of the magnet 26 can stop the alarm device from operating.

[Effect of idea]

As a result of the present invention configured as described above, water can be suitably boiled by placing it on an electromagnetic cooker. Moreover, the structure of the electromotive current generating coil provided for this purpose is simplified and it can be easily assembled, and since the liquid container is housed inside the outer case including the bottom plate, the outer case can be freely replaced. It has the effect of being able to design freely.

In particular, according to the present invention, the water heater itself is not equipped with an induction heating device (for example, an inverter circuit, a high frequency oscillation circuit, a load circuit, an oscillation frequency control circuit, etc.), and can be used by using a conventionally known electromagnetic cooker. Because of this, the internal structure is simple, there is a large degree of freedom in design, and it can be manufactured at low cost.

As mentioned above, the magnetic force from the electromagnetic cooker is converted into an electric current inside the water heater, and this current is passed through the heater to generate heat. Compared to conventional types, the outer case itself is safe because it does not heat up, and there is no need for wiring between the water heater and the electromagnetic cooker, which has the special effect of allowing the water heater to be moved freely.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional side view showing one embodiment of the present invention;
Figure 2 is a vertical side view showing a cross section of a different part from Figure 1, Figure 3 is a partially vertical side view showing a cross section of a different part, Figure 4 is a side view showing the terminal, and Figure 5 is an overturned side view. FIG. 6 is an exploded enlarged perspective view of the main parts of the water stop valve, and FIG. 6 is an exploded enlarged perspective view showing the main parts of the liquid level display device. DESCRIPTION OF SYMBOLS 1... Liquid container, 2... Outer case, 4... Bottom plate part, 17... Middle bottom plate, 18... Coil for generating electromotive current, 19... Heater, 20... Bottom mounting body, 20
a...Claw piece, 21... Support material, 22... Bolt.

Claims (1)

[Claims for Utility Model Registration] In a water heater used by being mounted on an electromagnetic cooker equipped with an induction heating device: A liquid container 1 is disposed inside an outer case 2, and a heater 19 is provided in the liquid container 1. Consistency: A flat spiral electromotive current generating coil 18 that generates an electromotive current when receiving a magnetic force from the induction heating device of the electromagnetic cooker is connected to the heater 19, and the electromotive current generating coil 18 is attached to the outer case. 2, a middle bottom plate 17 is arranged on the coil 18, and the coil 18 is sandwiched between the bottom plate part 4 and the middle bottom plate 17.